163145232 has 160 divisors (see below), whose sum is σ = 490801920. Its totient is φ = 51840000.

The previous prime is 163145221. The next prime is 163145249. The reversal of 163145232 is 232541361.

163145232 is a `hidden beast` number, since 1 + 631 + 4 + 5 + 23 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (4320) is a multiple of the sum of its prime factors (270).

It is a junction number, because it is equal to n+sod(n) for n = 163145196 and 163145205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1080357 + ... + 1080507.

It is an arithmetic number, because the mean of its divisors is an integer number (3067512).

Almost surely, 2^163145232 is an apocalyptic number.

163145232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163145232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245400960).

163145232 is an abundant number, since it is smaller than the sum of its proper divisors (327656688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163145232 is a wasteful number, since it uses less digits than its factorization.

163145232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 258 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 163145232 is about 12772.8317925196. The cubic root of 163145232 is about 546.4177457514.

Adding to 163145232 its reverse (232541361), we get a palindrome (395686593).

The spelling of 163145232 in words is "one hundred sixty-three million, one hundred forty-five thousand, two hundred thirty-two".